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        <h2 class="post-title" itemprop="name headline">iOS模拟器Custom Location被重置解决方案

          
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        <h2 id="问题说明"><a href="#问题说明" class="headerlink" title="问题说明"></a>问题说明</h2><p>在做地图类应用时，经常需要用到位置模拟功能。iOS模拟器提供了该功能，我们可以设置指定的经纬度，选中模拟器后，按照以下菜单层次进入即可设置：</p>
<figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line">Debug --&gt; Location --&gt; Custom Location</span><br></pre></td></tr></table></figure>

<p>但是该功能存在的问题是设置完经纬度每次重新run程序，或者重启模拟器的时候都有可能使之前设置的Location状态从<code>Custom Location</code>变成<code>None</code>，导致设置的经纬度信息无效。</p>
<p>因此经常需要重新选择<code>Custom Location</code>，对于每天需要run程序n次的我们来说苦不堪言…</p>
<h2 id="解决方案"><a href="#解决方案" class="headerlink" title="解决方案"></a>解决方案</h2><p>好在Xcode的target设置项中提供了设置位置信息的方法，允许我们使用GPX文件来设置自定义位置信息，步骤如下：</p>
<a id="more"></a>

<ul>
<li>获取GPX文件</li>
</ul>
<p>GPX（GPS eXchange Format, GPS交换格式)是一个XML格式,为应用软件设计的通用GPS数据格式。它可以用来描述路点、轨迹、路程。（来自<a href="http://zh.wikipedia.org/wiki/GPX" target="_blank" rel="noopener">维基百科</a>）</p>
<p>我们可以通过第三方网站：<a href="http://gpx-poi.com/" target="_blank" rel="noopener">gpx-poi.com</a>来生成一个GPX文件，生成过程也很方便：</p>
<p>在网站左上角拖动地图到指定位置，鼠标单击后会出现一个红色标注，同时地图下方会显示出标注的经纬度数据；</p>
<p>点击地图下方的<code>Update</code>按钮就能将经纬度信息更新到界面右侧的位置信息描述表格中；</p>
<p>然后将界面拉到底部，填写GPX文件名称，选择操作系统型号；</p>
<p>点击<code>Create</code>按钮即可生成一个XML格式的GPX文件，再点击<code>Download</code>按钮即可将文件下载到本地。</p>
<p>生成的GPX文件大概是这样：</p>
<figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br></pre></td><td class="code"><pre><span class="line">&lt;?xml version=&quot;1.0&quot; encoding=&quot;UTF-8&quot; standalone=&quot;no&quot;?&gt;</span><br><span class="line">&lt;gpxxmlns=&quot;http://www.topografix.com/GPX/1/1&quot;xmlns:xsi=&quot;http://www.w3.org/2001/XMLSchema-instance&quot; xsi:schemaLocation=&quot;http://www.topografix.com/GPX/1/1 http://www.topografix.com/GPX/1/1/gpx.xsd&quot;version=&quot;1.1&quot; creator=&quot;gpx-poi.com&quot;&gt;</span><br><span class="line">	&lt;wpt lat=“41.988810&quot; lon=&quot;116.474828&quot;&gt;</span><br><span class="line">		&lt;time&gt;2014-05-25T07:27:53Z&lt;/time&gt;</span><br><span class="line">		&lt;name&gt;A&lt;/name&gt;</span><br><span class="line">   	&lt;/wpt&gt;</span><br><span class="line">&lt;/gpx&gt;</span><br></pre></td></tr></table></figure>

<ul>
<li>导入GPX文件</li>
</ul>
<p>在Xcode中选中指定target，按以下菜单层次进入：</p>
<figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line">Edite Scheme --&gt;  Options --&gt;  Default Location --&gt;  Add GPX File to Project</span><br></pre></td></tr></table></figure>

<p>（此时必须保证<code>Allow Location Simulation</code>选项是选中的，该设置项默认选中。）</p>
<p>如图所示：</p>
<img src="/images/article3/default_location.png" width="703" height="475">

<p>即可将刚才生成并下载到本地的GPX文件添加到工程里。从此以后不管是重新run程序还是重启模拟器都可以在程序启动的时候定到位。</p>
<p>不过这种做法有个缺点，我在实际使用的时候发现设置完<code>Default Location</code>以后，真机的位置信息也会被更改成设置的位置！！！还请记得在软件发布时删除该设置项。</p>
<h2 id="2014年10月1日更新"><a href="#2014年10月1日更新" class="headerlink" title="2014年10月1日更新"></a>2014年10月1日更新</h2><p>好消息，在最新版的<code>Xcode6.0.1</code>中，已经修复这个问题了，每次重新调试时<code>Custom Location</code>再也不会被更改了！</p>
<h2 id="参考文档"><a href="#参考文档" class="headerlink" title="参考文档"></a>参考文档</h2><ul>
<li><a href="http://stackoverflow.com/questions/19719276/ios-simulator-reverts-location-setting" target="_blank" rel="noopener">iOS Simulator Reverts Location Setting</a></li>
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